3 and 1 will go into both number evenly leaving no remainders.
1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765.
The number is 1.
9.
1
9 is an odd number but in decimal form you can use 4.5
9
It is: 1
The number 1 is the only one.
Just 1.
1, 3, 9, 27.
' 1 ' is the only whole number that goes into both 9 and 5 evenly (without a remainder).
1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 153, 306.